Villain is 33/26, agf-2.9, 3bet 6%, wtsd 25%,w&sd 66%, 550 hands
Again i face agresion on board where he can rep so little. And again i am in gray zone couse either his got 6 or flush draw ( i assume his stronger K are in his 3 bet range?!) So i struggle to find right plan .

With his 3bet I doubt that he is always having AK or such type of hands in his 3betting range. Therefore we can't even exclude AK type of holding here. Taken into account that he has so far way too high W$SD I can't see him that often bluffing in those spots and I'd be rather willing to give it up on the turn or either if I plan to call-down then I should have the plan to Call also the river down.

People who have high W$SD they are less likely to bluff 3streets and against them we have to watch out what we doing and what we picking for call-downs.